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DAT Math Formulas Exam Questions and Answers 2024/2025( A+ GRADED 100% VERIFIED)
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DAT Math Formulas Exam Questions and Answers 2024/2025( A+ GRADED 100% VERIFIED)
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DAT Math FormulasDistance Formula - ANS D=(velocity)(time)
avg. velocity - ANS Total distance travelled/time
linear equation - ANS y=mx+b
y1-y2=m(x1-x2)
Dist between two points - ANS Make right triangle and solve hypotenuse
degrees C to K - ANS K=C+273
C to F conversion - ANS F=9/5(C)+32
1in= cm? - ANS 2.5 centimeters
1M=yd? - ANS 1.1 yards
1Ib.=g? - ANS 454 grams
1kg=ibs? - ANS 2.2 pounds
Exponent Rules
(X^b)(Y^b)
X^b/Y^b)
(X^n)(X^m)
X^n/X^m
(x^a)^b - ANS (X^b)(Y^b) = (XY)^b
(X^b/Y^b) = (X/Y)^b
(X^n)(X^m) = X^n+m
X^n/X^m = X^n-m
(x^a)^b = x ^ a*b
log rules
log(mn)
log(m/n)
nlog(x)
logbA - ANS log (mn) = log(m) + log(n)
log (m/n) = log(m) - log(n)
, log (m^n) = nlog(m)
nlog(x) = Log(x^n)
logbA= log a/ logb
percent increase/decrease= - ANS [(x2-x1)/x1]*100%
Combination Formula - ANS n! / (n-r)! * r!
- n is the total number and r is the sample number
- order doesn't matter
Permutation Formula - ANS n!/(n-r)!
- order does matter
standard deviation formula - ANS 1. Work out the Mean (the simple average of the numbers)
2.Then for each number: subtract the Mean and square the result.
Then work out the mean of those squared differences.
Take the square root of that
Variance - ANS Stand. Dev. Squared
Gaussian distribution
1 standard deviations
2 standard deviations
3 standard deviations - ANS 1 standard deviations= 68%
2 standard deviations+= 95%
3 standard deviations= 99.7%
Area of a circle - ANS A=πr²
Area of a sphere - ANS 4πr^2
surface area of a rectangle - ANS 2lw+2wh+2lh
Area of hollow cylinder - ANS 2pi r^2
Area of ellipse - ANS pi a b
Area of triangle - ANS 1/2bh
area of rhombus - ANS A=bh
Area of a regular polygon - ANS (.5)(# of sides(N))(sin360/N)(s^2)
Area of a cylinder - ANS (2pi*r*h) + (2pi* r^2)
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